Updating fedora kernel headers
As I mentioned I am very new at linux and fedora 23 is my first distro ever. Put "how to install headers in fedora 23" in your favorite search engine and follow the instructions.I don't know if I have installed Kernel headers, neither I know how to do or check. echo Your kernel headers for kernel 4.4.7-300.fc23.i686 PAE cannot be found at/lib/modules/4.4.7-300.fc23.i686 PAE/build or /lib/modules/4.4.7-300.fc23.i686 PAE/source.
in terminal when typing: sudo /sbin/rcvboxdrv setup Stopping Virtual Box kernel modules [ OK ]Uninstalling old Virtual Box DKMS kernel modules [ OK ]Trying to register the Virtual Box kernel modules using DKMSError!Error: Nothing to do $ yum search "kernel-headers-uname-r == $(uname -r)" --disableexcludes=all Loaded plugins: auto-update-debuginfo, changelog, langpacks, refresh-packagekit Warning: No matches found for: kernel-headers-uname-r == 3.12.6-200.fc19.x86_64 No matches found Synchronizes the installed package set with the latest packages available, this is done by either obsoleting, upgrading or downgrading as appropriate.When you compile a custom kernel module such as device driver on a Cent OS system, you need to have kernel header files installed on the system, which include the C header files for the Linux kernel. Attempting to install using DKMSCreating symlink /var/lib/dkms/vboxhost/5.0.18/source - /usr/src/vboxhost-5.0.18DKMS: add completed. I have all the requirements installed # uname -r4.4.6-301.fc23.x86_64Package kernel-headers-4.4.6-301.fc23.x86_64 is already installed,# dnf install binutils gcc make patch libgomp glibc-headers glibc-devel kernel-headers kernel-devel dkms Last metadata expiration check: ago on Wed Apr 20 2016. The virtual machine 'Alex PVista' has terminated unexpectedly during startup with exit code 1 (0x1).Failed to install using DKMS, attempting to install without Makefile:185: *** Error: unable to find the sources of your current Linux kernel. Package binutils-2.25-17.fc23.x86_64 is already installed, skipping. Package gcc-5.3.1-6.fc23.x86_64 is already installed, skipping. Package make-1:4.0-5.1.fc23.x86_64 is already installed, skipping. Package patch-2.7.5-2.fc23.x86_64 is already installed, skipping. Package libgomp-5.3.1-6.fc23.x86_64 is already installed, skipping. Package glibc-headers-2.22-11.fc23.x86_64 is already installed, skipping. Package glibc-devel-2.22-11.fc23.x86_64 is already installed, skipping. Package kernel-headers-4.4.6-301.fc23.x86_64 is already installed, skipping. Package kernel-devel-4.4.5-300.fc23.x86_64 is already installed, skipping. Package kernel-devel-4.4.6-300.fc23.x86_64 is already installed, skipping. Package kernel-devel-4.4.6-301.fc23.x86_64 is already installed, skipping. Package dkms-220.127.116.11-317c3e7c5.fc23.noarch is already installed, skipping. Result Code: NS_ERROR_FAILURE (0x80004005)Component: Machine Wrap Interface: IMachine b.
Note on a VPS (for instance a Linode VPS), a kernel may have a customized version name, in such scenario, you have to identify the kernel version manually and check the installed kernel header files using following commands.